SimpleSigma vs GroupCollect
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
SimpleSigma
This app offers a versatile calculator with three distinct table types for various needs, from simple sums to complex quantity-based calculations. It features intuitive input, auto-saving, and CSV export. An optional Pro version removes ads, unlocks unlimited tables, and adds advanced statistics and OCR receipt scanning.
- Three distinct table types (Simple, Duplex, Shopping)
- Auto-totaling and quick sum calculations
- Swipe keyboard for cell navigation
- CSV data export
- Auto-save functionality
- Optional Pro version with advanced features
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β About SimpleSigma A simple and powerful calculator app for everyday use. From shopping calculations to business tallies, SimpleSigma handles it all. Choose from 3 table types to match your needs. β Key Features Simple Table - Extremely simple input - Auto-totaling as you type - Quick sum calculation - Perfect for receipt scanning (Pro - Beta) Duplex Table - Multiply two values automatically - Great for area or unit price calculations - Subtotal display Shopping Table - Price x Quantity = automatic calculation - Custom tax rates - Subtotals at a glance Common Features for All Tables - Swipe keyboard up/down/left/right to move between cells - CSV export - Auto-save β Pro Version Benefits Upgrade to SimpleSigma Pro for more power: No Ads Work distraction-free Unlimited Tables Create as many tables as you need (Free: 3 max) Advanced Statistics - Period-based totals (Today, Week, Month, Year) - Daily trend charts - Type breakdown pie charts - Total, Average, Max, Min at a glance - CSV export AppleWatch supported - Simple Table, Sharing with iPhone Receipt OCR (Beta) - Scan receipts with camera - Auto-recognize total amounts - Best suited for Simple Table - Save time on manual entry Starting at $2.99/month Save more with yearly plan! β Perfect For - Quick shopping calculations - Business expense tracking - Visualizing spending patterns - Managing multiple projects separately - Ad-free focus β Highlights - Extremely simple input design - Swipe keyboard (up/down/left/right) for fast cell navigation - Native iOS interface - Auto-save results - CSV export for data portability - Japanese & English support β Free Version Includes - All 3 table types - Up to 3 tables - Core calculation features - Keyboard swipe navigation - CSV export β Privacy - All data stored locally on device - No external server uploads - Secure iOS backup β Support Questions or feedback? Contact us: applicast3@gmail.com Make calculations smarter with SimpleSigma. Download now and try Pro for full features! Terms of Service: https://gist.github.com/zekoo2026/892cbcbb08ec7a1ce6e54e370acf2b51 Privacy Policy: https://gist.github.com/zekoo2026/12756689700e4afa4c9295cc4e0ba244
GroupCollect
Simplify group payment collection by tracking who owes what and sending reminders. Ideal for managing shared expenses for events, trips, or club dues.
- Manage member lists
- Track individual payment amounts
- Send automated reminders
- View payment status at a glance
- Organize group expenses
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As the organizer or treasurer, easily handle the toughest parts of collecting money from a group: the member list, individual payment amounts, and reminder messages! Ever covered the bill at a party, heard βIβll pay you back later,β and then lost track of who actually paid you? Weβve all been there. Introducing βShukinkunβ (literally βMoney Collectorβ in Japanese) β the ultra-handy app that shows at a glance who has paid! Whether youβre splitting costs on a night out, settling up after a group trip, or collecting club dues, this app does it all. With Shukinkun, managing group payments becomes a breeze. Start your smooth, stress-free payment collection life today!
Screenshots
Verdict
The clearest difference is review sentiment: GroupCollect at 88% against SimpleSigma's 67%. GroupCollect also leads on update cadence (fortnightly vs every 6 weeks) and iOS requirement (13.0 vs 26.0). On price, ads, in-app purchases and monetization model there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. SimpleSigma sells 2 in-app purchases, starting at $2.99 per month and GroupCollect sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
SimpleSigma ships an update every 6 weeks, GroupCollect fortnightly. The most recent releases landed on October 7, 2026 and October 5, 2026 respectively.
| Parameter | SimpleSigma | GroupCollect |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 66.7% of reviews | 87.5% of reviews β better |
| Update frequency | Every 6 weeks | Fortnightly β better |
| Ads | Yes | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, Apple Watch | iPhone, iPod |
| Requires iOS | 26.0 | 13.0 β better |
| Further details β not scored | ||
| Size | 7 MB | 99 MB |
| Age rating | 4+ | 4+ |
| Developer | MUTSUAKI KIKUCHI | YUMA IKEO |
Customer experience
SimpleSigma
GroupCollect
In-app purchases
SimpleSigma
- SimpleSigma Pro (Monthly)$2.991 Month
- SimpleSigma Pro (Yearly)$29.991 Year
GroupCollect
- γ³γΌγγΌγγγ(S)$0.99
- εΊεει€$2.99
- γ³γΌγγΌγγγ(M)$2.99
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- γ³γΌγγΌγγγ(L)$6.99









